Used primarily in respiratory medicine, this compound acts as a bronchodilator to manage symptoms of chronic obstructive pulmonary disease (COPD), including chronic bronchitis and emphysema. It helps relax the muscles in the airways, making breathing easier. It is commonly administered via inhalation using a nebulizer or metered-dose inhaler. Also used to treat acute bronchospasm in patients with reversible obstructive airway disease. Additionally, it can help reduce excessive nasal secretion and is sometimes used in nasal spray form for runny nose, especially in cases of non-allergic rhinitis. Not intended for immediate relief of sudden breathing problems but rather for maintenance therapy.